A186776 Stanley Sequence S(0,2).

0, 2, 3, 5, 9, 11, 12, 14, 27, 29, 30, 32, 36, 38, 39, 41, 81, 83, 84, 86, 90, 92, 93, 95, 108, 110, 111, 113, 117, 119, 120, 122, 243, 245, 246, 248, 252, 254, 255, 257, 270, 272, 273, 275, 279, 281, 282, 284, 324, 326, 327, 329, 333, 335, 336, 338, 351, 353, 354, 356, 360, 362, 363, 365, 729, 731, 732, 734, 738, 740

Offset: 1

Author

N. J. A. Sloane, Mar 19 2011

Keywords

• nonn

Comments

See A185256.

In ternary these numbers have 0's and 1's everywhere, except the last digit is either 0 or 2. [Tanya Khovanova, Nov 16 2013]

a(n) = A005836(n) + A000035(n). [Tanya Khovanova, Nov 16 2013]

Links

• Alois P. Heinz, Table of n, a(n) for n = 1..2000

Crossrefs

Cf. A185256, A004793, A033160, A033163.

Programs

Mathematica

Select[Range[0, 1000], MatchQ[IntegerDigits[#, 3], {(0|1)..., 0|2}]&] (* Jean-François Alcover, Jan 13 2019, after Tanya Khovanova *)

Formula

Equals A004793(n)-1, also A033160(n)-2, also A033163(n)-3. Note that A004793 has a recurrence.